JP2009277629A - Lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting fixture capable of appropriately lighting a desired range and reducing irradiation of light in an unnecessary direction. <P>SOLUTION: The lighting fixture 1 is provided with a rotatable arm section 11 and a base section 12. The arm section 11 is composed of a plurality of lighting units L11-L17 mounted with LEDs as light sources respectively. The lighting units L11-L17 each having a connection member 18 opened on both ends in a direction approximately orthogonal to an optical axis of each LED, are coupled with each other so as to be connected via pins 19 which penetrate the connection members 18 in common and are parallel to the optical axes. A desired range below the arm section 11 can be intensively lighted by bending the lighting units L11-L17 in an arbitrary shape on the surface in the direction approximately orthogonal to the optical axes of the LEDs via the connection members 18 and the pins 19. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a luminaire that can appropriately illuminate a desired range.

  Conventionally, there is a stand-type lighting fixture that can illuminate only a local desired range. This stand-type lighting fixture is configured such that a column portion is erected on a base portion installed on a tabletop or the like, and a head portion to which a light source such as a fluorescent lamp or an incandescent lamp is attached is connected to the upper end portion of the column portion. It irradiates light only in the direction.

  In recent years, in order to reduce power consumption and maintain a long life, a stand-type lighting fixture using a light emitting diode (LED) as a light source for illumination has been proposed. For example, a rigid pipe having an LED disposed therein and a flexible pipe formed in a bellows shape or a coil shape are integrally joined in an alternately rotatable state to constitute an arm portion, or the entire arm portion, or There is one in which a desired range can be illuminated intensively by bending a part (see, for example, Patent Document 1).

  Further, as shown in FIGS. 5 and 6, a flexible arm portion 33 erected from the base portion 32 is provided with a head portion 31 in which a large number of LEDs are arranged, and the head portion 31 has a predetermined shape. There is an example of a stand-type luminaire in which the illumination range a of the LED can be adjusted by bending and deforming (see, for example, Patent Document 2).

  However, in the conventional stand-type lighting fixture using a fluorescent lamp or an incandescent lamp as a light source, the light irradiation range cannot be freely changed because the light source is installed at one place of the stand.

Moreover, the stand type lighting fixture of patent document 1 changes the distance with an irradiation surface for every LED by bending an arm part, unevenness in the illumination intensity in an illumination range arises, and adjusts illumination intensity. It was difficult.

  Furthermore, in the example described in Patent Document 2, although the arm portion 33 can be deformed with a high degree of freedom, the optical axis changes three-dimensionally due to the deformation, so that not only the irradiation surface such as a desk top but also unnecessary. There is a possibility that light is also irradiated in the direction. Further, once the arm portion 33 is deformed, it is difficult to return to the state before the deformation.

  Moreover, since the light of the same output is radiated | emitted from all the parts of the arm 33 part, there exists a problem that a part of LED cannot be light-extinguished and a light distribution state cannot be changed.

JP 2007-59284 A Utility Model Registration No. 3127995

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a lighting apparatus capable of appropriately illuminating a desired range and capable of reducing light irradiation in an unnecessary direction. And

  The present invention is a lighting fixture comprising a lighting unit provided with a light source, and an arm part that supports the lighting unit and can be bent in a plane, wherein the lighting unit is equipped with the light source, The optical axis of the light source is connected via the arm portion so as to be substantially parallel to the rotation axis of the arm portion.

With this configuration, it is possible to appropriately illuminate a desired range on the irradiation surface of the light source and to light in an unnecessary direction by freely bending the arm portion on a plane in a direction substantially orthogonal to the optical axis of the light source. Can be reduced.
Further, the present invention includes the above-described lighting fixture, wherein the arm portion is connected to a base portion that incorporates a lighting circuit that controls blinking of the light source.

  Furthermore, the present invention provides the above-described lighting fixture, wherein the arm portion includes a connecting member that opens at both ends in a direction substantially orthogonal to the optical axis of the light source, and the connecting members of the adjacent lighting units are commonly used. It includes a plurality of illumination units that are connected through pin members that penetrate and are parallel to the optical axis.

  With this configuration, the connecting members of adjacent lighting units are connected to each other via a pin member, so that the arm portion can be freely bent in a plane substantially perpendicular to the optical axis of the light source, and a desired surface can be formed on the irradiation surface of the light source. The range can be appropriately illuminated, and it is possible to reduce the irradiation of light in unnecessary directions.

  Furthermore, the present invention includes the above-described lighting apparatus, wherein the lighting unit includes a switch that controls blinking of the light source.

  With this configuration, the head unit can be freely bent in a plane substantially orthogonal to the optical axis of the light source, and a desired range can be appropriately illuminated on the irradiation surface of the light source by individually controlling the lighting of the light source. It is possible to reduce the irradiation of light in unnecessary directions.

  Further, the present invention includes the above lighting device, wherein the lighting circuit performs flashing control or dimming control of the light source independently.

  With this configuration, the head unit can be freely bent in a plane substantially perpendicular to the optical axis of the light source, and the light source can be individually controlled to be turned on or dimmed, so that a desired range can be appropriately set on the irradiation surface of the light source. Therefore, it is possible to reduce the irradiation of light in unnecessary directions.

  Moreover, this invention contains what said light source is LED in said lighting fixture.

  With this configuration, power consumption is low, the lifetime is long, a desired range can be appropriately illuminated on the irradiation surface of the light source, and light irradiation in unnecessary directions can be reduced.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to illuminate a desired range appropriately, the lighting fixture which can reduce irradiation of the light to an unnecessary direction can be provided.

  Hereinafter, lighting fixtures according to embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a diagram showing a schematic configuration of a lighting fixture according to Embodiment 1 of the present invention.

  In FIG. 1, the lighting fixture 1 in this Embodiment is equipped with the arm part 11 with which the light source was mounted | worn, and the base part 12 for mounting or fixing to a desk, a wall, etc., and the arm part 11 is a base part. It is supported by support pillars 13 connected to 12.

  The arm unit 11 is composed of a plurality of illumination units L11 to L17 each having an LED 10 mounted thereon as a light source. The illumination units L11 to L17 each have a connecting member 18 that opens at both ends in a direction substantially orthogonal to the optical axis of the LED 10. It is connected so that it may continue via the pin 19 which penetrates the connection members 18 in common. In the present embodiment, seven illumination units are shown. However, the number is not limited to this, and any number of illumination units may be used.

  The base portion 12 has a configuration in which a lighting circuit 121 for lighting the LED 10 with a predetermined brightness is housed inside and a main switch 122 is provided on the surface. Moreover, the support part 13 is comprised by the cylinder shape, and the wiring 131 from the lighting circuit 121 to LED10 is penetrated by the inside. Note that commercial power is supplied to the lighting circuit 121 via a plug 133.

  The lighting fixture 1 of this Embodiment comprised in this way can blink all the LEDs 10 by operating the main switch 122 of the base part 12. FIG.

  Then, when the main switch 122 is turned on and the LED 10 is turned on, the lighting units L11 to L17 are bent into an arbitrary shape on a plane substantially perpendicular to the optical axis of the LED 10 via the connecting member 18 and the pin 19. By doing so, a desired range below the arm portion 11 can be intensively illuminated.

  FIG. 2 is a schematic diagram for explaining the lighting operation of the lighting fixture 1 according to the present embodiment.

  In FIG. 2, when all the LEDs 10 are turned on by turning on the main switch 122, the lighting units L <b> 11 to L <b> 17 are connected to the planes in the direction substantially orthogonal to the optical axis of the LEDs 10 via the connecting members 18 and the pins 19. The illumination ranges A and B can be obtained by bending in the shape of “inverted 6”. At this time, it is possible to reduce the illumination from reaching a range other than A and B.

  As described above, according to the lighting apparatus of the present embodiment, it is possible to appropriately illuminate a desired range such as on a desk, and it is possible to reduce irradiation of light in unnecessary directions.

(Embodiment 2)
FIG. 3 is a diagram showing a schematic configuration of a lighting fixture according to Embodiment 2 of the present invention.

  In FIG. 3, the lighting fixture 2 in this Embodiment is a structure provided with the arm part 21 instead of the arm part 11 of the lighting fixture 1 shown in FIG. Portions common to both drawings are denoted by the same reference numerals and redundant description is omitted.

  The arm unit 21 is configured to include illumination units L21 to L27 in place of the illumination units L11 to L17 illustrated in FIG. 1 in the first embodiment.

  Each of the lighting units L21 to L27 includes a switch 211 for individually turning on / off the LEDs 10.

  The lighting fixture 2 of this Embodiment comprised in this way can blink all the LEDs 10 simultaneously by operating the main switch 122 of the base part 12. FIG.

  Further, when the main switch 122 is turned on, the LEDs 10 can be individually blinked by selecting and operating the switches 211 of the lighting units L21 to L27.

  When some or all of these LEDs 10 are turned on, the lighting units L11 to L17 are bent into an arbitrary shape on the plane in a direction substantially orthogonal to the optical axis of the LEDs 10 via the connecting members 18 and the pins 19. By doing so, a desired range below the arm portion 11 can be intensively illuminated. The pin 19 is parallel to the optical axis of the LED 10.

  FIG. 4 is a schematic diagram for explaining the lighting operation of the lighting fixture 2 according to the present embodiment.

  In FIG. 4, when the main switch 122 is turned on, the switch 211 of the lighting units L21 to L23 is turned off, and the switch 211 of the lighting units L24 to L27 is turned on, the lighting units L11 to L17 are connected to the connecting member 18 and the pin 19. , The illumination range A can be obtained by bending in a “reverse 6” shape in a plane substantially perpendicular to the optical axis of the LED 10. At this time, it is possible to reduce the illumination beyond the range A.

  As described above, according to the lighting apparatus of the present embodiment, it is possible to appropriately illuminate a desired range such as on a desk, and it is possible to reduce irradiation of light in unnecessary directions.

  In addition, in this Embodiment, it was set as the structure which can blink LED10 separately by providing the switch 211 in each of the lighting units L21-L27, However, without providing the switch 211 in the lighting units L21-L27, the lighting circuit 121 The LED 10 may be individually controlled to blink or dimm.

  The lighting fixture of the present invention can appropriately illuminate a desired range, and has the effect of reducing light irradiation in an unnecessary direction, and can be used as a stand-type lighting fixture such as a task stand. Useful.

The figure which shows schematic structure of the lighting fixture which concerns on Embodiment 1 of this invention. Schematic for demonstrating the illumination operation | movement of the lighting fixture which concerns on Embodiment 1 of this invention. The figure which shows schematic structure of the lighting fixture which concerns on Embodiment 2 of this invention. Schematic for explaining the lighting fixture lighting operation according to the second embodiment of the present invention. The figure which shows schematic structure of the conventional stand type lighting fixture The figure which shows the operation state in the case of changing the illumination range in the conventional stand type lighting fixture

Explanation of symbols

1, 2 Lighting fixtures 10 LED
DESCRIPTION OF SYMBOLS 11, 21 Arm part 12 Base part 13 Support part 18 Connection member 19 Pin 211 Switch L11-L17, L21-L27 Illumination unit

Claims (6)

A lighting device including a lighting unit including a light source, and an arm unit that supports the lighting unit and can be bent in a plane,
The lighting unit is:
Each of the light sources is mounted, and the lighting apparatus is connected via the arm portion so that the optical axis of the light source is substantially parallel to the rotation axis of the arm portion. The lighting fixture according to claim 1,
The arm portion is a lighting fixture connected to a base portion having a lighting circuit that controls blinking of the light source. The lighting apparatus according to claim 1 or 2,
The arm portion is
A connecting member that opens at both ends in a direction substantially orthogonal to the optical axis of the light source;
A lighting fixture comprising a plurality of lighting units that pass through the connecting members of adjacent lighting units in common and are connected via a pin member parallel to the optical axis. It is a lighting fixture in any one of Claims 1 thru | or 3, Comprising:
The lighting unit is:
A lighting fixture comprising a switch for controlling blinking of the light source. It is a lighting fixture in any one of Claim 2 thru | or 4, Comprising:
The lighting circuit is
A lighting fixture that controls blinking or dimming of the light source independently. It is a lighting fixture in any one of Claims 1 thru | or 5, Comprising:
The light source is
A lighting fixture that is an LED.

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